Question about Boss Mt 2 Metal Zone Effects Pedal

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I plug it in and all it does is make a high

I plug it in and all it does is make a high pitch noise? What is wrong how do I fix it?

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Make sure you either use a fresh, name brand battery or correct AC adapter.

Turn all controls down at first as it is possible this pedal may feedback internally if controls are all up.

Posted on Nov 12, 2009

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Posted on Jan 02, 2017

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